Eot klompaeens



R. KLOMPARENS ADJUSTABLE BOOT Oct. 11, 1932.

*I *Ivi I .1:51021 Filed Deo. 8, 1930 Patented Oct. 11, 1932 PATENT OFFICE ROY rlrmzriennrNs, or i PROVIDENCE, RHODE ISLAND ADJUSTABLE Doom Application filed DecemberS, 1930. Serial No. 500,793.

This invention relates to boots of the character used to make connections between the warm air pipes of furnaces and either stacks or register casings. Stacks areused in furnace installations for carrying the warm air from the warm air pipes to floors above the rsty story ina house or building and are of rectangular form in cross section, being located within the walls of the building. The Tifo furnace registers direct the warm air into a i room and are usually mounted ina wall of the Vroom immediately above the floor and the register casing has a rectangular opening in its lower side. Y"15 The furnace pipes are of cylindrical form Y and with the diiferentsizes of furnaces, or .even inthe same furnace, may be of different diameters. The boots used are to make a proper carrying'conduit for warm air be- V135e tween the ends of the cylindrical warm air pipes and they lower ends of stacks of rectangular cross section, and also between the `cylindrical end ofpipes and the register casings having rectangular openings for the boots to associate therewith to carry the warm air to said casings.

The openingsin the registercasings are of a different size than of the opening at the lower end of a stack, that is, the width is iso different even though the length of the opening bel the same in the stack. It has been previous practice to provide a size of stack or furnacecasing opening-which might be provided for receiving the upper end of the boot.

1:35` Therefore, there have been many different sizes of boots previously required for furnace installations; and in many cases for the same furnace' installation in a building several different sizes of boots have been necessary.

#so Itis the primary object and purpose of the present invention to lprovide a boot construction of a universal character and one whichy can be adjusted by use of fillers or expanding members to make the same larger, so that a far less number of parts for the production of the boots used in furnace installation is attained, and there will be no danger vof furnishing wrong sizes in boot construcv tions tothe furnace installer when a furnace -j v` is to be installed in a house or building. A

further object of the invention is to make a universal boot construction which is simple and easy to produce and of a relatively inexpensive nature.

An understanding of the invention for the attainment of the ends stated maybe had from the following description, taken in connection with the accompanying drawing, in which,

Fig. 1 is a vertical section illustrating the 60 use of the' boot of my invention between a star; and a furnace pipe of the smallest size use Fig. 2 is a like vertical Section showing the boot adjusted for use between a stack of the same size as that shown in Fig. l and ay furnace pipe of a larger size.

Fig. 3 is a like section illustrating the boot adjusted for use between a furnace pipe of the same size as shown in Fig. 2 and a furnace 70 register casing in which the opening is of greater size than at the lower end of the stack.

Figs. 4 and 5 are horizontal sections taken, respectively, on the planes of line 4 4 of Fig. 1 and of line 5-5 of Fig. 3, and

Fig. 6 isa perspective view of the furnace boot, as in Fig. l, without the use of fillers to enlarge it for other conditions of installation.

Like reference characters refer to like so parts in the different figures of the drawing.

The furnace pipe l is of cylindrical form and of the smallest size which is used in standard furnace construction. There may be several of these pipes of the same or S5 larger sizes leading rfrom a furnace casing to carry warm air to different rooms. The stack l2 of sheet metal is of rectangular form andV located vertically in the wall 3 of a house or building. The stack of rectangular form has an opening at its lower end which is of considerably vgreater length in one dimension than in the other.

The universal boot construction which I have invented is made of two separable parts which may be either directly joined together or joined together with the insertion of expanding fillers between thesame, so' as to enlarge the boot for larger sizes of furnace pipes or openings into which the boot at its upger end is inserted.` Y

ne partl of the boot comprises a vertical back 4 of thin sheet metal from which sides 5 are bent to lie at substantially right angles and the edges of said sides are formed with `L-shapedV lips. 6., bent outwardly and then back upon each" of said sides 5, while the lower end portion of this part'of the boot is shaped substantially in thearc. of a circle as indicated at 7. VThe upperend of this sec# tion of the boot has the sides 5 turned rfrom,

the back4 at right angles as shown in Fig.` 6,

while belowV the bendszmay be of a rounded character 'as indicated in Fig. 4.

W hen a larger furnace pipe,-such as indicated at 1a in F ig. 2, isto have the boot con- Y nection made between it andthe end of a stack, such as 2, a vfiller 13, also made of sheet metahis usedf and located between the sides 5 and 10of the two parts ofthe boot. This filler is formed at yone edge with an inturned Ueshaped engaging 'lip to interlock with 'a' lip'6,and at its other edgewith an outturned U-shapedliptoengage with an inturnedv lip 12.5 'The filler-13,'as vshown-Jin Fig. 2, is of triangular form, coming to a point at its uppery end, vas the enlargement of the boot is to be at the ylower end to connect with Vthe large furnace pipe 1a, while-the upper. end` ofY -theboot is the lsame'size lto tV within the same size ofstack' 2.

When the boot is usedpw'th a largek furnace pipe, suchas pipe 1a', to carry warmair from itto a furnace register, as v16 in Fig'. f3,` the opening in the bottom ofthe furnace register vis of greater width. than the opening'in aY 5 ystack 2, anda filler 13a is correspondingly Qwidened'at its upperend but otherwise there is,` no differencer in the construction The widening of the ller strips lalat their upper-'lends makes the boot at its upper end 'j'wider so 'as to correspond to theo'pening in the furnace casing made to receive it. rlShe Llller stripslal have lips 12 and.14, which inv yterlocl; with the lips-15 and 6, respectively; i f The-filler strips 13 vand, 13a maybe Vof .sev-

eral different characters as Yto shape for ydifferentconditions tobe met. For instance, if

the register casing V'16 and a smaller furnace [pipe like thatcshown'inFig. 1 lareto be Vjoined together by a bootthe filler strip used `wouldconfie to a point at its lower end. Y

1 lThisv construction Yof ,universal boot for furnace installa-tionis a very {n "actical one.

The Vtwo'principal parts of thebootjarethe quired materials are at handfor the proper installation of a furnace.

The invention re-v duces the number of boots required to be man /ufactured and kept on hand inthe factory,

with a great saving of space for storage, inasmuch as thetwo major parts of aboot are readily nested with others and the filler mem# bers "13 and 130iy occupy littlelor no space. The-invention has proved of greatpractical merit. It is. deiined in the appended claims and'is tobec'onsidered comprehensive ofall forms of structure coming within their scope. v'I claim:

' f 1; A furnace boot including", two members 'each having sides adapted to extend toward the sides of the other member and formed at their free'edgeswith means to Vinterengage with like means on the edges of the sides of the other members, and filler strips located between they free edge portions of the sides of said bootl members, and likewise. formed withcooperating interengaging means at their edges l Vto lengage with said means at the free edgesof the sides ofthe boot members; wherebyfthe boot may be assembled by joining the twoimembers with the filler strips Y betweenthem.v f Y Y Y V2. A bootY for furnaces comprising, two members made of sheet metal, oneof said members'h'aving a lbach withspaced lsides. extending therefrom, and-'the other of said Y members :having a front-` withyspaced l sides extending therefromtowalrd the sides of'` the first members, interengaging means' at the -free edge'slo'f they sides-of said members adapt# Aed to be positioned togetherto form an inter-v locking engagement, said boot members being so formed that when --joine'dtogether .there is provided a rectangular opening atV one end of the boot and a circular opening at the' opposite end and a filler' strip-,having engaging 'means along bothy edges whereby it may be inserted between adjacent edges of one set ofthesides- 3; A furnaceboot including two members of thin sheet metal, VVeach having'spaced sides, VVthe' sides o f said members extending ltoward each other, land filler stripswide'r at one endV than at the other,also ofsheet metal, disposed i Ybetween the free edgeportions of saidj sides of the boot members', means at the edge portionsVV of the iiller strips and vcomplementary means to 'engagetherewith at the free edge portions .of the sidesY of. theboot members adaptaadvv to Ahave interlocking engagement, for the'purposes'specified@i ,f f; r

g 4. A' furnace'fboot comprisinogtwof'jmain boot members anda pair offillerstrips, said bootmembers having sides adapted to extend toward each othen and the fillerstrips being adapted to belocatedbetweein said sides'vto adjust thesize of saidboot, saidsidesof the bootpmembers'at their free'edge portions and saidjfiller stripsi at theirwedge'portions being formed with complementary engagingmeans,

lao l whereby furnace boots of a plurality of sizes may be produced.

5. A furnace boot comprising, two main boot members and a pair of filler strips, said filler strips being located between said main members at their edges to adjust the size of said boot7 said edgesl of the boot members and said filler strips being formed with complementary engaging means.

6. In a furnace boot having a longitudinal parting at one side of the combination of a tapered filler strip adapted to slidably engage the edges of said parting for the purpose described.

In testimony whereof I affix my signature.

ROY KLOMPARENS. 

